Tagged Questions
-2
votes
0answers
21 views
Python lambda vs Functional programming's lambda [on hold]
Could someone explain the basic difference between Python's lambda and functional programming's lambda?
6
votes
3answers
160 views
Why I need to use unit type in F# if it supports void type?
If to read MSDN article:
Unit Type (F#)
...The unit type is a type that indicates the absence of a specific
value; the unit type has only a single value, which acts as a
placeholder when no ...
0
votes
2answers
71 views
To do beta reduction in Matlab?
How can you do a beta reduction like the following in Matlab?
My goal is to avoid duplicate assignments and lazy-evaluate things -- perhaps related to the question multiple step anonymous ...
0
votes
2answers
99 views
Is there way in C# to pass all agruments in callback function for the precalculate
I have such a method:
internal PointGeospatial ConvertToSpherical(double x, double y, double z)
I wonder, does exist such a possibility to handle all arguments in method in some functional style in ...
4
votes
5answers
369 views
Is polymorphism in C# so polymorphic as could be?
I wonder, how is C# polymorphic?
If we base on the definition of the word: polymorphism ( ...polymorphism in the context of object-oriented programming, is the ability to create a variable, a ...
4
votes
2answers
370 views
How to create a K combinator in the enchanted forest? (To Mock a Mockingbird)
Recall that the K combinator is a constant function. It always returns its first argument:
Kxy = x for all y
In the book To Mock a Mockingbird the author presents an example of an enchanted forest ...
3
votes
2answers
152 views
Filter values in a Python object array generically with a lambda function as a string
I'm working on a generic framework, and at some point I'm trying to filter variables in a generic manner. Take for example the following class:
class X:
def __init__(self, val):
self.val ...
4
votes
7answers
275 views
Example where lambdas are very useful in Python
I met lambda expressions in Python. I have seen already many easy examples (including examples on SE) where lambda expressions produce functions like adders of whatever but I can't see the real ...
17
votes
2answers
1k views
Can currying be used with lambda functions?
This piece of code fails to compile and I don't know if it is because it can not be done, lambdas do not inherit from binary_function, or it is just that I'm getting the syntax wrong
#include ...
2
votes
1answer
218 views
Few questions on generator expressions and speed efficient alternatives
Consider the following code, integral to my questions below:
import functools
N = 3
class Struct:
"""Create an instance with argument=value slots.
This is for making a lightweight object ...
